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首页> 外文期刊>Rangelands >Managing for Biodiversity and Livestock: A scale-dependent approach for promoting vegetation heterogeneity in western Great Plains grasslands
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Managing for Biodiversity and Livestock: A scale-dependent approach for promoting vegetation heterogeneity in western Great Plains grasslands

机译：生物多样性和牲畜的管理：促进大平原西部草原植被异质性的尺度依赖方法

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摘要

In the western Great Plains (semiarid rangelands west of the 100th meridian and east of the Rocky Mountains), millions of acres of native grasslands remain intact. With beneficial management, these grasslands have great potential to revive populationsof grassland birds (such as the Mountain Plover, Lark Bunting, Upland Sandpiper, Long-billed Curlew, and McCown's Longspur), which have declined over the last 30 years. To help reverse this decline, land managers can implement strategies to improve grassland bird habitat while maintaining the productivity of their livestock operations. Wildlife conservationists and agencies recommend managing grasslands for vegetation heterogeneity to improve grassland bird habitat and recover declining populations. Vegetation heterogeneity refers to variability in the structure and composition of plant communities over space and time. Grassland plant communities are inherently heterogeneous because of plant species diversity, which results from differences in physical characteristics (climate, soils, topography) as well as disturbance processes (e.g., livestock grazing, prescribed fire, burrowing mammals, and ant hills).
机译：在大平原西部（子午线以西的第100个子午草原牧场地和落基山脉以东），数百万英亩的天然草地完好无损。通过有利的管理，这些草地具有恢复过去三十年来数量下降的草地鸟类（如高山P，百灵鸟，高地Sand，长嘴Cur和麦考恩的朗布尔）的巨大潜力。为了帮助扭转这种下降趋势，土地管理人员可以实施改善草地鸟类栖息地的策略，同时保持其牲畜养殖的生产力。野生动物保护主义者和机构建议对草地进行植被异质性管理，以改善草地鸟类的栖息地并恢复数量下降的种群。植被异质性是指植物群落的结构和组成随时间和空间的变化。由于植物物种的多样性，草原植物群落具有固有的异质性，这是由于物理特征（气候，土壤，地形）以及干扰过程（例如牲畜放牧，明火，挖洞的哺乳动物和蚁丘）的差异造成的。

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